deploy from github actions

app/routers/admin.py

@@ -107,7 +107,8 @@ async def login_admin(
     form_data: OAuth2PasswordRequestForm = Depends(),
     db: Session = Depends(get_db)
 ):
-    admin = db.query(AdminUser).filter(AdminUser.username == form_data.username).first()
+    clean_username = form_data.username.strip().lower() if form_data.username else ""
+    admin = db.query(AdminUser).filter(func.lower(AdminUser.username) == clean_username).first()
     if not admin:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,